Fuzzy logic controller of PMSM drvies

Mat Rodzi, Nur Qamarina (2021) Fuzzy logic controller of PMSM drvies. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

In this project, a Permanent Magnet Synchronous Motor (PMSM) drives is designed by using Fuzzy Logic Controller (FLC). The PI controller's proportional and integral gains are modified using Fuzzy Logic. In this project, the PI controller using 9-rule FLC, and 49-rule FLC are also compared. The Fuzzy Logic Controller (FLC) is built using fuzzy rules to ensure that the systems are essentially stable. For motor tuning, there are 9 and 49 fuzzy rules. There are two inputs on the FLC which are the first input is the difference in motor speed between the reference and actual speed, while the second is the speed change error (speed error derivative). After that, the FLC's output which is the PI controller's parameter is utilised to control the PMSM speed. The performance of a Fuzzy Logic Controller (FLC) based on "if-then" control rules is compared to that of a commonly used Proportional Integral plus Derivative (PID) controller. The FLC is more durable and efficient than the PI controller, according to the study, because it is less susceptible to changes in system parameters and uses less energy. On the basis of the MATLAB simulation result, a comparison was made between the conventional output and the fuzzy self-tuning output. The simulation results show that the developed FLC controller achieves best PMSM dynamic behaviour, perfect speed tracking with shorter rise time, less steady-state error, and superior performance than the typical PI controller.

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